1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Feliz [49]
3 years ago
12

Complete the sentence indicating the number of protons and electrons in the given ion. Match the numbers in the left column to t

he appropriate blanks in the sentences on the right. The ion P3− has The ion P 3 − has blank protons and blank electrons. protons and The ion P 3 − has blank protons and blank electrons. electrons.
What isotope has 17 protons and 18 neutrons? Enter the name of the element followed by a hyphen and the mass number (e.g., uranium-234).
Which element does X represent in the following expression: 4120X? Enter the chemical symbol of the element. X is the element symbol . Provide Feedback Correct. Followup. All bromine atoms have 35 protons. A neutral atom also has 35 electrons. The sum of the protons and neutrons gives the mass number, . End of followup.
Chemistry
1 answer:
Cloud [144]3 years ago
5 0

Answer: (Chlorine-35)

Element X is Ca

Explanation:

Number of proton plus the number of electron gives the mass number.

You might be interested in
Methylpropane (complete and condensed structural formulas)
Tcecarenko [31]

Answer:

Here's what I get  

Explanation:

1. Complete structural formula

Methylpropane consists of a chain of three carbons with another carbon atom attached to the middle carbon. Enough H atoms are added to give each C atom a total of four bonds.

The complete structural formula is shown below (There is a C atom at each intersection).

2. Condensed structural formula

A condensed structural formula is designed to be typed on one line.

The molecule has three CH₃ groups attached to a single carbon atom, so the condensed structural formula is  

(CH₃)₃CH

The formula is also often written CH₃CH(CH₃)CH₃ and as (CH₃)₂CHCH₃.

5 0
3 years ago
Sapphires and Rubies are composed of ? <br>A. olive<br>B. turquoise<br>C. corundum<br>D. quartz​
Aleonysh [2.5K]

Answer:

c

Explanation:

it is corundum now please follow me

8 0
3 years ago
Read 2 more answers
5. Which of the following statements is not true?
vladimir1956 [14]

i believe the answer is...

Atoms of isotopes of an element have different numbers of protons.

4 0
3 years ago
Read 2 more answers
What is the pH of <br> 0.000519 M NaOH?
Softa [21]

The pH of the sodium hydroxide (NaOH) solution at the given concentration of 0.000519 M is determined as 10.72.

<h3>What is pH of solution?</h3>

The pH of a solution is defined as the logarithm of the reciprocal of the hydrogen ion concentration  [H+] of the given solution.

Concentration of the basic solution, [OH⁻] = 0.000519

pOH = -log[OH⁻]

pOH = -log[0.000519]

pOH = 3.28

<h3>pH of the solution</h3>

pH + pOH = 14

pH = 14 - pOH

pH = 14 - 3.28

pH = 10.72

Thus, the pH of the sodium hydroxide (NaOH) solution at the given concentration of 0.000519 M is determined as 10.72.

Learn more about pH here: brainly.com/question/26424076

3 0
2 years ago
An atom of nitrogen has several protons in its nucleus. How many electrons does it have
Semenov [28]
It has 7 electrons, 7 protons and 7 neutrons
4 0
3 years ago
Other questions:
  • The goal of this lesson is to answer the lesson question, "what does half-life ‘look like' for a radioactive substance?" fill in
    9·2 answers
  • What is the threshold frequency ν0 of cesium?
    11·1 answer
  • All but one action would increase the rate at which solid metal will react with an acid solution. That is...
    7·1 answer
  • What does the word terrestial mean?
    10·2 answers
  • To what volume should you dilute 30mL of a 12.0M H2SO4 solution to obtain a 0.160M H2SO4 solution?
    7·1 answer
  • The subatomic particles are.........
    14·1 answer
  • What is the importance of a chemical symbol?
    10·2 answers
  • Which number is always increasing throughout your organized table?
    11·1 answer
  • HELP ME PELASE I JUST NEED THIS LAST QUESTION!
    15·1 answer
  • How many oxygen atoms are there in 1665 grams of iron(II) phosphate? Please explain how you found your answer.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!